Fuel injection system

US6532938B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernd Mahr · Plochingen, DE
• Martin Kropp · Ditzingen, DE
• Hans-Christoph Magel · Pfullingen, DE
• Wolfgang Otterbach · Stuttgart, DE

Key dates

• Filing date: May 21, 2001
• Grant date: Mar 18, 2003
• Expiry date: May 21, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M63/0007
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fuel injection system includes a pressure storage chamber and one injector assigned to each cylinder, which injector can be connected to the pressure storage chamber via a pressure line that includes a metering valve. Using a single 2/2-way valve as a metering valve per cylinder makes for a more-economical manufacture of a fuel system, especially for small engines. The fuel injection is done under pressure control.